Name

Pin

I / O

Functional Description

CD_R

20

I

This line level input can be routed through the input mux and recorded by the right ADC. In

addition, this analog input gets summed into the right output stream. The amount of CD_R

signal mixed in the right output stream can be adjusted from +12dB to −34.5dB in 1.5dB

steps as well as muted via register 12h.

MIC1

21

I

Either MIC1 or MIC2 can be selected via software and routed through the input mux for

recording. The 20dB boost circuit is enabled/disabled via register 0Eh. Also, the amount of

mic signal mixed in the output stream can be adjusted from +12dB to −34.5dB in 1.5dB

steps as well as muted via register 0Eh.

MIC2

22

I

Either MIC1 or MIC2 can be selected via software and routed through the input mux for

recording. The 20dB boost circuit is enabled/disabled via register 0Eh. Also, the amount of

mic signal mixed in the output stream can be adjusted from +12dB to −34.5dB in 1.5dB

steps as well as muted via register 0Eh.

LINE_IN_L

23

I

This line level input can be routed through the input mux and recorded by the left ADC. In

addition, this analog input gets summed into the left output stream. The amount of

LINE_IN_L signal mixed in the left output stream can be adjusted from +12dB to −34.5dB in

1.5dB steps as well as muted via register 10h.

LINE_IN_R

24

I

This line level input can be routed through the input mux and recorded by the right ADC. In

addition, this analog input gets summed into the right output stream. The amount of

LINE_IN_R signal mixed in the right output stream can be adjusted from +12dB to −34.5dB

in 1.5dB steps as well as muted via register 10h.

LINE_OUT_L

35

O

This is a post-mixed output for the left audio channel. The level of this output can be

adjusted from 0dB to −45dB in 1.5dB steps as well as muted via register 02h.

LINE_OUT_R

36

O

This is a post-mixed output for the right audio channel. The level of this output can be

adjusted from 0dB to −45dB in 1.5dB steps as well as muted via register 02h.

MONO_OUT

37

O

This line level output can be switched between outputting the post-mixed combined left and

right outputs or the mic signal. The level of this output can be adjusted from 0dB to −45dB in

1.5dB steps as well as muted via register 06h.

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